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cmd-load: Add load command

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This commit is contained in:
Sean Cross 2014-09-19 16:14:01 +08:00
parent 107f38c699
commit d93e92acda
1 changed files with 56 additions and 0 deletions
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cmd-load.c Normal file
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#include <string.h>
#include "bionic.h"
#include "serial.h"
#include "printf.h"
#include "memio.h"
int cmd_load(int argc, char **argv)
{
uint32_t offset;
uint32_t total;
uint32_t left;
if (argc != 2) {
printf("Usage: load [offset] [size]\n"
"Loads [size] bytes to address [offset]\n");
return 1;
}
offset = _strtoul(argv[0], NULL, 0);
total = _strtoul(argv[1], NULL, 0);
left = total;
while (left--)
writeb(serial_getc(), offset++);
return 0;
}
int cmd_loadjump(int argc, char **argv)
{
uint32_t offset;
uint32_t total;
uint32_t left;
void (*jumpaddr)(void);
if (argc != 2) {
printf("Usage: loadjmp [offset] [size]\n"
"Loads [size] bytes to address [offset], and "
"jumps to [offset] afterwards.\n");
return 1;
}
offset = _strtoul(argv[0], NULL, 0);
total = _strtoul(argv[1], NULL, 0);
jumpaddr = (void (*)(void))offset;
left = total;
while (left--)
writeb(serial_getc(), offset++);
jumpaddr();
return 0;
}